jayjay51987

iTrader: (4)

neat little car might have to get me one!

hobbizone

iTrader: (4)

Im using aftermarket BL at 4800kv but its just that the esc is not programmable. Im putting it at my rs4 with stock chasis however, when throttling the car goes donut. Why is that so??? Anybody can assist me here

Bermbuster

iTrader: (11)

first off
how is the car mechanically....do the wheels spin freely? is the steering centered? if you roll the car on the floor does it track straight? Is your steering is centered?

your new esc is the power linear? or is it like off-on....
if you pin the throttle very fast the car can donut.....

Let us know what you find.....

hobbizone

iTrader: (4)

Mechanically the car is using, stock chasis, stock frt and rr shock & spring, upgrade micro ball diff set. The wheels do spin freely all four and when throttling also. Is just that my steering, i have to sub trim it to the right until 100 then trim it again another 15 at the front screen of my 3pk, then only the car can go straight. But right after throttlilng the car would go spining or donut. My bl esc is just like the on and off and im using 11.1v 3 cell lipo. Even i have reduced the throttle curve to -100 the max, still it goes donut. I even lock tight my rear ball diff because its just keep spinning . . .

hobbizone

iTrader: (4)

Mechanically the car is using, stock chasis, stock frt and rr shock & spring, upgrade micro ball diff set. The wheels do spin freely all four and when throttling also. Is just that my steering, i have to sub trim it to the right until 100 then trim it again another 15 at the front screen of my 3pk, then only the car can go straight. But right after throttlilng the car would go spining or donut. My bl esc is just like the on and off and im using 11.1v 3 cell lipo. Even i have reduced the throttle curve to -100 the max, still it goes donut. I even lock tight my rear ball diff because its just keep spinning . . .

Bermbuster

iTrader: (11)

does the motor have a brake? after you let off the throttle do the wheels still spin? what esc are you using?

hobbizone

iTrader: (4)

Oh ok, hmm, the bl and motor hv brake, and after letting off the throttle, that, i got to check again whether the wheels still spin or not.

a. If wheels still spin after throttle ... ok?
b. If wheels do not spin after throttle, is it nok ok? binding?

The esc is meant for a plane using bl motor, i dunno what brand but it really does not have any device for programming, as u said its just an on and off esc. This is just my project since in the internet they said any 5000kv below bl can be used at the rs4. I might want to try to go with 2 cell lipo 7.4v and see whether the rs4 can take it or not.

Now, i have changed back to my stock motor.

Bermbuster

iTrader: (11)

I think the esc you have when you let off the throttle the motor brakes.....like a drag brake...this will cause your vehicle to turn.....and spin....
you really need a car esc.....

hobbizone

iTrader: (4)

Alrite bro, will do that, thanks . . .

hobbizone

iTrader: (4)

Guys, anyone knows whether or not does the front one way for micro rs4 can really withstand the brushless speed, because if im using the 4800kv bl then my front one way gear would strip.

Rapid Roy

Okay, how many of you have you micro Rs4's in the back of your RC closet? Its time to bust those bad boys out and run in the HPI Challenges. Thats right, the HPI challenge races have been brought back from the dead. The So Cal race it Feb 17th in Corona. Check the HPI website for a full schedule. Who is going to race?

MikeR

iTrader: (15)

Was cleaning mine up this evening. Should be a blast with the new battery and motor rules

Rapid Roy

Are you running brushless and lipo? I'm thinking about picking up a Venom Fireball. I have heard that it has more umph then the Orion big block I have now.

MikeR

iTrader: (15)

Yes, I'm just going to yank the Tekin motor and Lipo from my M18. Only problem with that is the cogging.
Most of the time my brushed mod motors are faster but 20% of the time they hang a brush or act weird in that it won't run so I figure the brushless is more dummy proof for me :P

jymellis

iTrader: (4)

the venom fireball is pretty nice but like the title says it does get HOT. i have found that stock rc18t and mini-baja motors work really well and are under 20 bux. this is a good choice also!
https://www.ssl-stormerhobbies.com/c...ns&pn=TRI11991

hope this helps
jym